Chub is eating feed. Chub is a typical filter-feeding fish, mainly eating zooplankton such as rotifers, branchiostomes, copepods (such as cyclops), but also eating some phytoplankton (such as diatoms and cyanobacteria) and artificial feed.

The appetite of chub is directly proportional to the water temperature. The chub likes high temperature, and the optimal water temperature is 23℃~32℃. The chub's appetite is most vigorous in the hot summer.

To raise a good chub you need to know the special feed for chub first, and at the same time cast animal manure to improve fertility.

Expanded information:

1, feed

Chub artificial with the feed should be more than 30% of the crude protein content, the fat should be more than 4%. Feed protein raw materials need a certain proportion of animal protein raw materials and plant protein raw materials, animal protein raw materials to fish meal is good, plant protein raw materials to peanut cake is good.

In terms of feed processing technology, feed ingredients are best used in ultra-micro-milling, 90% of the raw materials can be crushed through the 80-mesh sieve is good, so as to improve the chub's digestive absorption efficiency and growth rate.

In terms of feed particle size, chub feed is divided into powder and puffed floating feed, chub specifications less than 100g, can be fed powder; chub specifications greater than 100g, you can choose a particle size of 0.3mm puffed floating feed; chub specifications greater than 250g, you can choose a particle size of 0.5mm puffed floating feed; chub specifications greater than 500g, you can choose a particle size of 1mm puffed floating feed. Chub specifications greater than 500g, you can choose 1mm particle size expanded floating feed.

2, feeding

If the chub is mixed with other predatory fish, in order to improve the feeding efficiency of the fish, it is recommended to feed the chub and grass carp in zones. Partition feeding, also known as sub-table feeding.

Partition feeding needs to be domesticated in order to form the habit of feeding grass carp and silver carp in their respective areas.

First feed the grass carp with grass carp feed for half an hour, and then feed the chub powder or puffed floating feed for baiting, grass carp feeding area and chub feeding area spacing of 20 meters or more is good. Generally through 7~10 days of domestication, you can realize the zonal feeding.

The feeding amount of chub is mainly adjusted according to the water temperature, zooplankton biomass, stocking density, and fish feeding, and the feeding rate of normal chub is recommended to be 0.5%~1.5%.

The chub is a filter-feeding fish that feeds around the clock by constantly filtering zooplankton and other feeds in the pond water. Considering the feeding mode of chub, and according to the stocking density of the pond, it is recommended to increase the feeding frequency of compound feed, and it is appropriate to feed it 4~5 times a day.

The higher the stocking density of chub, the higher the feeding volume. It is generally recommended that the stocking density of chub in ponds with mixed fish such as grass carp and crucian carp is less than 60 tails/mu, which can be fed less or not at all; the stocking density of chub reaches more than 100 tails/mu, and it is recommended to increase the feeding amount of feed, or else it will affect its growth rate.

The chub ingests feed in the surface layer of the water body, and should pay attention to avoiding waste when feeding, when hand-scattering, do not feed more than the amount of feed each time, and the speed of feeding should be slow, and the time of feeding each time should not be less than 1 hour.

Baidu Encyclopedia-Chub